Air-tight seal
[化] 气密密封
🧩 词语组成解析
air
[ɛə]
n. 天空;气氛;空运;（简单易记的）曲调;
vt.& vi. 晾晒;烘干;播送;广播;
vt. 使房间通风， 透气;
tight
[taɪt]
adj. 紧的，牢固的;绷紧的;不漏的;密集的，紧凑的;
adv. 紧紧地;牢固地;
seal
[sil]
n. 密封;印章;海豹;封条;
v. 密封;盖章;决定;封上（信封）;
🗣️ 情景例句
First, we need to more public relations activities to promote understanding.
首先，我们应该更多地做公关活动以促进了解。
Again.
又来了！
will move decisively from the second phase to the third,
就可以明确地从第2阶段进入第3阶段。